For consistency with #10053, this commit moves the JMX specific endpoint
properties to `management.endpoints.jmx`.

This commit moves CORS properties out of the endpoints namespace as they
do not refer to a "cors" endpoint but rather to the CORS configuration
of all endpoints.

Closes gh-10053

Closes gh-10052

This commit removes an import on a class in "spring-web" as this class
is also meant to be used with Jersey only (i.e. when "spring-web" is
not present on the classpath).

Closes gh-10051

* pr/10050:
  Document default values for compression properties

Closes gh-10050

This test is not useful in this context.

Closes gh-9889

This commit fixes ServerPortInfoApplicationContextInitializer so that
is registers a listener against `WebServerInitializedEvent`.

A former polish to use a lambda actually introduced a regression as the
listener was registered as `ApplicationListener<?>`.

Closes gh-10047

* pr/9752:
  Polish "Harmonize database initializers"
  Harmonize database initializers

Closes gh-9752

This commit updates database initializers configuration to enable them
automatically only when an embedded `DataSource` is used. Related
configuration properties have been updated to use a more expressive
`DatabaseInitializerMode` enum rather than `Boolean` flag.

See gh-9752

Neo4jDataAutoConfiguration is meant to kick in when Spring Data Neo4J is
on the classpath. Yet, we were only checking for the presence of neo4j
itself and the transaction manager provided by spring-tx.

This commit makes sure to back off if Spring Data Neo4J is not present.

Closes gh-10038

This reverts commit 0e645988

Closes gh-10034

* pr/10032:
  Polish

Closes gh-10032

* pr/10033:
  Remove null check before instanceof

Closes gh-10033

Closes gh-10025

Closes gh-10028

Closes gh-7513

This commit makes sure to prevent the Freemarker web auto-configuration
to kick in if `spring-webmvc` is not on the classpath.

Closes gh-10027

This commit introduces manual metadata for the endpoints.all.* namespace
and polish the appendix following the work that happened in #9692

The new endpoint infrastructure does not provide a `path` property so
the manual metadata for older endpoints have been removed.

This commit improves the configuration metadata annotation processor to
explicitly handle `@Endpoint` annotated class. Adding a new endpoint on
a project potentially creates the following keys:

* `endpoints.<id>.enabled`
* `endpoints.<id>.cache.time-to-live`
* `endpoints.<id>.jmx.enabled`
* `endpoints.<id>.web.enabled`

Default values are extracted from the annotation type. If an endpoint
is restricted to a given tech, properties from unrelated techs are not
generated.

Closes gh-9692

Closes gh-10026

* pr/10012:
  Polish "Add link to AMQP 1.0 JMS Binding Spring Boot starter"
  Add link to AMQP 1.0 JMS Binding Spring Boot starter

Closes gh-10012

See gh-10012

Closes gh-10021